code: def _remove_duplicated_edges(self):
      # TODO: it does not have duplicated edges if only supporting dedup input
      # Duplicated edges appear when a chain of prefix nodes are deduplicated
      pass
  
imports: import copy
  from typing import Dict, Tuple, Any, Type, cast
  from nni.common.device import Device, CPUDevice
  from nni.mutable.utils import uid
  from nni.nas.space import Edge, Graph, GraphModelSpace, Node
  from nni.nas.space.graph_op import Cell, Operation, _IOPseudoOperation
label_desc: Use image node_id 6 for calling the LogicalPlan obj's underlying member method code with example usage: obj._remove_duplicated_edges() without return types